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7.2.7
Model Data for Partial Differential Algebraic Equations
The numerical integration of systems of partial differential algebraic equations is very similar
to the solution of PDE’s without algebraic equations.
Number of Differential Equations: Define number of partial differential equations. The number of PDE’s must coincide with the number of model functions for the right-hand side on
the Fortran or PCOMP input file.
Number of Algebraic Equations: Define number of algebraic equations. The number of differential and algebraic equations must coincide with the number of model functions for the
right-hand side on the Fortran or PCOMP input file.
Figure 7.21: PDAE Parameters
Number of Integration Areas: Partial differential equations may be defined in different areas.
Their total number is to be inserted here. The number must coincide with the number of
areas defined in the table that defines the individual area structure. In each area, a uniform
discretization grid is applied. Thus, different areas with smooth transitions can be used to
change the grid size.
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